Asus K42JP firmware package tagged AS301, pointing to BIOS release 301, compressed as a 1.02 MB ZIP.

Small RAR archive, about 813 KB, holding BIOS firmware for the Dell Inspiron 1750 laptop; no board number, chip type or version is mentioned in the name.

64 KB firmware file for the ASUS K54C board revision 2.1, a size that points to embedded controller or keyboard-controller code rather than the main BIOS.

Four megabyte BIOS dump marked OK for a K52F, a model name used by ASUS, with the tag indicating a tested working image.

A 5.14 MB PDF datasheet covering the Microchip PIC18Cxx2 group of microcontrollers, where xx stands for several family members sharing one document.

Datasheet for the Microchip PIC16LC74B, a compact 615 KB PDF. The LC prefix indicates the low-voltage version of the PIC16C74B, with an extended supply range suited to…

Microchip PIC16C6x family datasheet, a 2.64 MB PDF covering several related 8-bit OTP or EPROM microcontrollers grouped under one x placeholder.

Microchip datasheet for the PIC12C67x series, small 8-pin EPROM/OTP microcontrollers with analog-to-digital conversion, in a 1.90 MB PDF.

Datasheet in PDF format numbered 6262, about 1.05 MB, with no part number or brand stated in the file name.

Application note for C51 parts, the common shorthand for 8051-family microcontrollers, provided as a 492 KB PDF.

Very small 18.0 KB ZIP named T-840 with a string that likely encodes the date 12 December 2016, but the device type and brand are not stated.

Schematic PDF covering the SM4375 chip, with an extra SM43 tag in the name that appears to repeat the family code; it is the same size, 1.57 MB, as another SM4375 file…

Generic 16.0 MB binary named outimage, a name typical of output from an editing or building tool, with no device, brand or board information given.

Boardview for the Lenovo ThinkBook 13s-IWL, motherboard BM5884A V1.2, provided in BDV format inside a 494 KB RAR.

Repair guide, RG, for the P452SJ laptop, delivered as a 714 KB PDF. Expect board layout images with marked components, voltage values at key test points and flowcharts…

Firmware archive named STB524HD, 2.93 MB, with no brand or board details in the name. The name suggests a set-top box or satellite receiver model, although this cannot…

Unlocked BIOS archive for the HP Elite x2 1012 G2, packed as an 8.10 MB RAR. The unlocked label suggests the image has a BIOS password or similar lock removed, making it…

Schematic PDF for the Bitland BM5688 board, a design from the ODM Bitland, which builds laptops and tablets for various brands.

PDF document for the IRFP260 power MOSFET, catalogued under schematics although the name points to a component datasheet.

PDF of 77.6 KB named 2SD1620 and filed with schematics; the name carries nothing beyond the part number, which points to a component datasheet.

PDF of 43.6 KB for the 3N252, listed under schematics though the name is a bare JEDEC part number.

Part reference for the 3N250, stored as a PDF of about 43.6 KB and catalogued in the schematic section.

Filed under schematics, the 39.8 KB PDF 2SD2441 with an E tag refers by its JIS-style 2SD prefix to an NPN bipolar transistor.

A 111 KB PDF for the 2SD2281, which under the Japanese JIS system is an NPN transistor from the low-frequency 2SD series.

The 2SK2035 transistor is the subject of this 295 KB PDF, most likely the manufacturer datasheet given that 2SK is the JIS prefix for N-channel FETs.

A 291 KB PDF dedicated to the 2SK1830. The 2SK code is the Japanese JIS designation for N-channel field-effect transistors, so this is almost certainly a datasheet…

Document for the 2SK1806 in PDF format, 136 KB, catalogued as a schematic. The 2SK code marks an N-channel FET under JIS naming, so the contents are likely a component…

For the 2SK664 transistor, this 34.9 KB PDF is indexed as a schematic but, judging by the JIS 2SK naming used for N-channel field-effect transistors, it is a datasheet…

The 2SD1294 is the only detail this 209 KB PDF name provides; the file is filed as a schematic but corresponds to a transistor part number.

PDF document of 90.2 KB titled with the part number 2SC3995 and filed as a schematic. The 2SC prefix follows JIS naming for NPN bipolar transistors; the name gives no…

Covering the 2SC3914, this 30.1 KB PDF belongs to the family of JIS-numbered NPN bipolar transistors identified by the 2SC prefix.

PDF document labelled as a schematic but named after the 2SC5387, a Japanese-numbered NPN bipolar transistor part number, so in practice it is almost certainly the…

A larger 225 KB PDF for the 2SC3710A, an NPN transistor under the Japanese JIS designation, indexed as a schematic.

PDF reference for the 2SC3596, sized at 119 KB and indexed with schematics although it describes a single semiconductor.

Indexed under schematics, this 223 KB PDF takes its name from the JIS part number 2SC2960, an NPN bipolar transistor designation.

Component datasheet for the 2SB1644, a small 48 KB PDF catalogued under schematics. JIS numbering places any 2SB part among PNP bipolar transistors for low-frequency…

The 2SA1930 is covered in this 190 KB PDF, which carries no detail besides the part number and is probably the component datasheet rather than a schematic.

A 28.6 KB PDF named after the 2SA1179, a PNP transistor under the JIS 2SA designation. With only a part number in the name, it is almost certainly a brief datasheet…

Reference sheet for the 2N4264, saved as a 264 KB PDF and carrying an RE tag in the file name that is not explained further.

Despite the schematic tag, this 50.3 KB PDF named 1N755A is a datasheet for a JEDEC-registered diode; the 1N746A to 1N759A range is a well-known zener series.